floxif | 539179e38b3714e748dd05a02e86a74bb3ac33696c19253acf7f4dc39e6c7994

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 12:41

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General

Target

539179e38b3714e748dd05a02e86a74bb3ac33696c19253acf7f4dc39e6c7994.exe
Size

286KB
MD5

51eff316ac4842fe4e15b7dad2acaef5
SHA1

4ab97aecd54ced93393004bd5c33cdb4857113aa
SHA256

539179e38b3714e748dd05a02e86a74bb3ac33696c19253acf7f4dc39e6c7994
SHA512

5f4ef6aa0d45d62bf684812cca25e9a087f15721ddd53f4a208df861c3fe7307e3e2432d4b545dcc3bc367f8475beb947a87c96c7c2ad5c7617528953fac7c75
SSDEEP

6144:bC7gKNkhSR/5kHouyXnZhB+h8WHUBV+UdvrEFp7hKH:bC7gKNkhm/JuyXnPB+h8WHUBjvrEH78

Score

10^/10

floxif backdoor discovery trojan upx

Malware Config

Signatures

Floxif family
floxif
Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
backdoor trojan floxif

Detects Floxif payload 1 IoCs

backdoor

resource	yara_rule
behavioral1/files/0x000c00000001226d-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000c00000001226d-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2084	539179e38b3714e748dd05a02e86a74bb3ac33696c19253acf7f4dc39e6c7994.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2084-6-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2084-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000c00000001226d-1.dat	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	539179e38b3714e748dd05a02e86a74bb3ac33696c19253acf7f4dc39e6c7994.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	539179e38b3714e748dd05a02e86a74bb3ac33696c19253acf7f4dc39e6c7994.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2084	539179e38b3714e748dd05a02e86a74bb3ac33696c19253acf7f4dc39e6c7994.exe

C:\Users\Admin\AppData\Local\Temp\539179e38b3714e748dd05a02e86a74bb3ac33696c19253acf7f4dc39e6c7994.exe
"C:\Users\Admin\AppData\Local\Temp\539179e38b3714e748dd05a02e86a74bb3ac33696c19253acf7f4dc39e6c7994.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2084

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2084-6-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2084-5-0x0000000000930000-0x0000000000967000-memory.dmp

Filesize
220KB

Download
memory/2084-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download